Does Medicare Cover Nebulizers? Coverage, Costs, and Medications

Which part of Medicare covers a nebulizer?

A nebulizer is a machine that turns liquid medicine into a fine mist you breathe in through a mask or mouthpiece. For most people who use one at home, the coverage comes from Medicare Part B.

Part B covers a nebulizer because it counts as durable medical equipment (DME). To qualify as DME, an item must be durable, used for a medical reason, generally not useful to someone who isn't sick or injured, used in your home, and expected to last at least 3 years. A nebulizer meets all of these tests, and it is explicitly listed among the DME that Part B covers.

Part B also covers the small-volume nebulizer together with its compressor when they are reasonable and necessary to deliver FDA-approved inhalation solutions for obstructive pulmonary disease (such as COPD or asthma).

If you receive nebulizer treatment while you are admitted to the hospital, that situation is different: equipment and services furnished during a covered inpatient stay fall under Part A (Hospital Insurance) as part of your stay, rather than being billed separately as DME.

How much does a nebulizer cost with Medicare in 2026?

Your out-of-pocket cost depends on whether you have met your deductible and whether your supplier accepts assignment (agrees to the Medicare-approved amount as full payment).

• Part B deductible: You first pay the 2026 Part B annual deductible of $283 before DME coinsurance applies.
• Coinsurance: After the deductible, you pay 20% of the Medicare-approved amount for the nebulizer, and Medicare pays the other 80%.
• Part B premium: To keep the Part B coverage that pays for a nebulizer, most people pay the standard 2026 monthly premium of $202.90 (higher earners pay more).
• Assignment matters: If your supplier accepts assignment, they can charge you only the coinsurance and the Part B deductible on the approved amount. A supplier that does not accept assignment may charge you more.
• Inpatient: If a nebulizer is used during a covered hospital admission, costs fall under Part A, where the 2026 inpatient deductible is $1,736 per benefit period.

Do you rent or buy a nebulizer, and where do you get one?

Medicare covers DME in different ways depending on the specific item. For some equipment you rent it, for some you buy it, and for some you can choose. With certain items, the equipment becomes your property after you make a set number of rental payments. Your supplier can tell you which arrangement applies to your nebulizer.

To be covered, both your prescribing doctor and your DME supplier must be enrolled in Medicare. Using a supplier that participates and accepts assignment protects you from extra charges. If a supplier is not enrolled in Medicare, Medicare won't pay the claim at all.

• Get a prescription: Your doctor must prescribe the nebulizer as medically necessary for home use.
• Use an enrolled supplier: Confirm the supplier is enrolled in Medicare and ask whether they accept assignment.
• Device types: Medicare recognizes pneumatic (compressor/jet) nebulizers and ultrasonic or electronic nebulizers, as long as the medical-necessity criteria in the applicable Local Coverage Determination (LCD) are met.
• Documentation: Coverage requires documentation showing the LCD medical-necessity criteria are met, which the supplier reports using a KX modifier on the claim.

Does Medicare cover nebulizer medications?

Yes, and this is one of the most important details to understand. The inhalation drugs you take through a Part B-covered nebulizer are also covered under Part B, not your Part D drug plan. This can be confusing because most other prescriptions run through Part D.

Covered inhalation solutions for obstructive pulmonary disease include albuterol, arformoterol, budesonide, cromolyn, formoterol, ipratropium, levalbuterol, metaproterenol, and revefenacin. These are covered when used with a nebulizer that Medicare covers as DME.

There are monthly maximum quantities that Medicare considers reasonable and necessary for nebulizer drugs. Amounts billed above those limits are denied as not reasonable and necessary, so your supplier and doctor should stay within the established quantity guidelines.

What qualifies for coverage, and what about Medicare Advantage and Medigap?

Medicare covers a nebulizer when it is reasonable and necessary to administer FDA-approved inhalation medication to manage obstructive pulmonary disease, such as COPD, asthma, or similar conditions. Your medical records must support that diagnosis and the need for the equipment.

If you are enrolled in a Medicare Advantage plan (Part C), the plan must cover at least the same nebulizer and DME benefits as Original Medicare. However, Advantage plans may use their own provider networks, require prior authorization, and set different cost-sharing. Check your plan's rules and use an in-network supplier; confirm details in your plan's Evidence of Coverage.

If you have a Medicare Supplement (Medigap) policy alongside Original Medicare, it can help pay the 20% coinsurance and, depending on the policy, the Part B deductible. The exact amount Medigap covers depends on which standardized plan letter you have.